android proxy app 0 and above that will allow you to quickly enable and disable your proxy settings, as well as unifying Android Proxy; Go to Wifi networks. And what I Proxy Master. Proxy Master is not a completely free app, but you can use it for free with ads. For application-specific HTTP proxy settings, set the proxy settings in the build. DroidSqli. NFCProxy can also be useful for protocol analysis to learn about the underlying communication protocol. In the Proxy Host Name box, enter the IPV4 Address you previously saved from your development machine. So to use SOCKS proxy on Android is best achieved using an app. On the internet we can find wonderful things, but also very unpleasant surprises. This insight comes really handy when you are into debug session and instead of wasting time in analyzing requests and response using debug points in your code in Android Studio. Or you can use an app specific to a protocol e. Proxy Master Brinda una conexión VPN encriptada y de alta velocidad a su teléfono inteligente o tableta. The saved transactions can be replayed to skim credit cards or the RFID credit card can be replayed at a POS terminal. Paid VPN Pro for Android - Premium Proxy VPN App is going to allow you to freely browse the internet without any restrictions and annoying ads. Rocket alternative to install on your smartphone. 323 for Android is available for free and safe download. Android development workflow since I´ve been creating mostly small games for Android. CalendarAlerts See full list on docs. The top 10 free hotspot app for Android can turn your Android phone into a Wi-Fi hotspot and allows you to share your internet connection with other devices and users directly. Android Debug Bridge (ADB) is a command-line tool which communicates with the actual connected android device or emulator to assess the security of mobile apps. HTTP(S) proxy is quite a powerful tool. Once you satisfy these additional constraints Fiddler can be used to examine or redirect traffic from your apps. I’m using Charles Proxy and highly recommend it. In my case, I am keeping it to the default port 5555. . Although it’s an old app, it still works really well. Open the Proxy ID app and log in. When you use a proxy, all your connections go through it before reaching websites and apps. Language/Japanese. Detect Proxy Settings in Your App with Android Proxy Library. Whether you can’t access your 30Fast Rocket VPN Pro | Fast & Worldwide Proxy VPN APK 5. Now you should have a proxy server running on port 8080 of your own computer that will relay the information over the Android Debug Bridge to the Proxy App which will relay it on to the internet. It not only works on the Android platform, but it also works on platforms like Window OS, Mac OS, Linux, Chrome, Firefox, and well-known routers. It’s also possible for malware to enable proxies without your knowledge and consent. Tap “Modify Network” when a menu appears. NFCProxy is a an Android app that lets you proxy transactions between an RFID credit card and a reader. Lately I´ve been tasked to create an app for my company which uses a coporate squid proxy. 10 Best Free Proxy/VPN Apps For Android 2020 Touch VPN. Connect all available virtual private network. ----- I have to say that using free services isn't always a smart choice. Top 10 Root Apps for Android Once you’re done debugging, don’t forget to remove the WiFi proxy from your Android device. . Proxynel proxy app is the fastest web proxy browser to unblock websites, by just opening the app you can browse and access almost any blocked website in your country. Set proxy setting globally or only for certain applications; In theory that’s all! BUT: During recent mobile application pentest sessions, I’ve noticed that sometimes applications traffic is not being passed through the proxy, especially when the application does not connect to standard HTTP ports like 80 or Smart DNS Proxy VPN Applications Secure & Encrypted Network Windows Download Windows App MAC OS Download MAC OS App iOS (iPhone, iPad) Download from AppStore An android apps iOS App 06:17 GreenNet VPN is a free and unlimited VPN (Virtual Private Network) proxy for Android devices. A custom HttpClientHandler may need additional configuration. Free services often aren’t reliable and might not secure you and provide you with services that you need, there might be lots of issues that you could meet only when you start usi Translate URLs in Application Body: Turn on Application Body link translation for an app when you want the links from that app to be translated in responses back to the client. Everyone keeps asking the question about configuring socks5 proxy on Android and IOS devices, this set up can't be configured for global traffic routing through proxy servers. 15. It is a proxy worldwide app by Small SEO Tools, an excellent Dr. Open Android’s Settings app and tap “Wi-Fi” to view a list of Wi-Fi networks. Just launch the Charles app and there’s not much to prepare. For more information, see Deprecation . Download the app from the Google Play Store. Download APKInspector 14. While Android WiFi settings proxy is easy to swap in and out, apps are built a little bit differently. The description of Proxy Server App. Tap the Modify network option. By the same developer, Proxy Server offers a more basic and solely "Proxy Server based" approach. Open your phone's Settings app. But for iOS it can be configure through the Wi-Fi connection in iOS. Here’s the overall diagram of what’s happening: Install a Proxy. Long-press the name of the Wi-Fi network you want to change the proxy settings for. Once we set up Charles Proxy, we are going to set up our Android emulator. However, restrictions may exist if HTTPS is used on Android Nougat or newer, but Burp Proxy is coming to the rescue! Android set proxy for all apps may never actually be something that we see because of how Android and the apps are built. Are you worried that your personal data might be leaked while you're surfing the Internet? Blue Proxy offers you a private and very safe surfing system. Over the years, the process for connecting Android devices to proxy servers has changed dramatically. It uses Tor to Snap VPN - Unlimited Free & Super Fast VPN Proxy APK Download for Android. This DOES NOT require root and will work with any device that has USB debugging on or any emulator (including Genymotion). NetShare Wi-Fi Hotspot. Psiphon facilitates access to websites and services which are censored, blocked, or otherwise unavailable, no matter where you are in the world. Click Save to save the settings and exit. Here are the best Android VPN apps and free VPN apps (Spoiler alert: ExpressVPN is the clear winner)! ExpressVPN is one of the most trusted, secure brands in the virtual private network industry The Unblock application is 100% free and available to all Android users no matter where they are located. Tap on “Access Point Names” (4). There is no trial, premium or freemium. Fact is, only one app can be the default app that opens up when you launch a file type or protocol on your device. Long tap on a current wifi network until the context menu pops up. It offers very fast speed and data limit up to 500mb/day. It is a proxy worldwide app by Small SEO Tools, an excellent Dr. This android app allows you to reverse engineer an Android app to get the source code and visualize the DEX code to erase credits and license. Rocket alternative to install on your smartphone. But today I will show you how you can configure your Android and iOS browsers for using socks5 proxy without having to root your device or download any The Android app is easy enough to use and has a list of nice features like split tunnelling, the ability to automatically connect to NordVPN whenever you join a Wi-Fi network, and the speedy AlarmClock; BlockedNumberContract; BlockedNumberContract. Enter the IP address (6) and port (7) of the Proxy server you want to use. You can also manually add a proxy connection. This particular app I wanted to test, however, required a minimum API level 24 (Android 7. By default, all the app FlashVPN. In our next article we will see how to configure Drony to use the proxy. Snap VPN is the fastest free VPN to unblock and access all your favorite websites and apps. Content at the tip of your fingers! With thousands of servers and millions of IPs, you can access any website and enjoy your favorite movies, TV shows, games, and more, in over 190 countries. You don’t have to be a tech guru to configure the proxy settings on an Android device. Scroll down to "Wi-Fi MAC address. The button should slide to the right. Step 1: Open Proxy Settings in Postman Mac App. And this is where Firewall apps come into the picture. The application did not use the native libraries, and did not support http proxy. In the Proxy Port field, enter 8888, as when configuring Charles. ‎Charles Proxy for iOS lets you capture and inspect network requests and responses on your iOS device. 0 for Android is available for free and safe download. ProxyDroid uses iptables in order to forcefully redirect traffic to your proxy Set up a custom hotspot through a second wireless interface and use iptables to redirect traffic yourself. Access Everything on the Open Internet with Psiphon Millions of people in over 200 countries around the planet are already connecting to the Internet using Psiphon, the most robust circumvention tool on the web. Create Wi-Fi Hotspot to share your internet/Wi-Fi connection with other devices 1. The app supports IKEv2 and OpenVPN, both are among the most secure and fastest VPN protocols currently available. 0 Lollipop, Fortnite, and many more programs Access Everything on the Open Internet with Psiphon Millions of people in over 200 countries around the planet are already connecting to the Internet using Psiphon, the most robust circumvention tool on the web. Read: Completely Block Any Kind of Porn on iPad/iPhone in 3 Simple Steps. Using APKPure App to upgrade Proxy Settings, fast, free and save your internet data. GreenNet VPN masks your IP address, encrypt your internet traffic, turns public Wi-Fi into a private network and helps unblock sites and apps on your Android phone so that you can access any restricted contect safely and Citrix deprecated support for a full VPN tunnel and a Proxy Automatic Configuration (PAC) file with a full VPN tunnel deployment for iOS and Android devices. ProxyDroid is an app that can help you to set the proxy (http / socks4 / socks5) on your android devices. 0 for Android is available for free and safe download. Tor or Shadowsocks (I have no affiliation with any apps mentioned in this answer). But luckily there are some ways to circumvent this limitation. VPN Proxy Master is a simple VPN that you can use to connect to the Internet via proxy servers, browsing safely and securely without leaving a trace. When running the Android plugin from the command line or on machines where Android Studio is not installed, set the Android plugin for Gradle proxy settings in the Gradle build file. Download this fantastic app now! On Android it’s impossible to run two VPNs at the same time, so you can see where this is going. There are many alternatives to Proxifier for Windows if you are looking to replace it. So, here are some of the best firewall apps to manage internet access to the apps on your Android device. When you start the TunProxy application, the following screen will be launched. Updating the Google Play services on the mobile device For an emulator, if you don't see the Google Play section in the side menu, you may need to update the Android Studio and download the latest system images in the Virtual Device Configuration . If you’re wondering how to run Android apps on proxy Wi-Fi, the answer is a bit more complicated, and it all comes down to how each app was designed. Orbot: Proxy with Tor is a free proxy application that authorizes other applications to use Internet in a secure way. You just don’t need to use any sort of credit card. This app uses the Android Proxy Library from here Servers Ultimate is an advanced app for turning your phone into a server. The company has a solid range of app support, running on Mac, Windows, iOS, Android, Fire TV and routers. The Overflow Blog Level Up: creative coding with p5. Be sure to turn off the proxy when done debugging, otherwise the phone’s HTTP stack will simply not work, trying to talk to a proxy that isn’t there any more. 6. net With over a million downloads from Google Play Store itself, Snap Master VPN is one of the awesome proxy server apps for android. 30Fast Rocket VPN Pro | Fast & Worldwide Proxy VPN APK 5. A brief recap from last week: We can start a man-in-the-middle proxy called mitmproxy which will capture all the network traffic from the emulator, and let us access the requests and responses from our test script. Run your own Proxy Server on your device! The app can handle HTTP and HTTPS protocols and GET/POST requests. As far as proxy configuration, the defaults should be fine. NoRoot Firewall While testing the API on Charles Proxy, we came to know that the API call was being made multiple times which lead to false app behaviour. With this app, you can visit any website regardless of regional restrictions. Charles Proxy can be very handy when it comes to integrating a backend with a mobile app. Preparing Charles. The enrollment type depends on how email is configured on the device: On Android Enterprise Fully Managed, Dedicated, and Corporate-owned Work Profiles, use an app configuration policy and the steps in this article. Snap Master VPN y el mejor túnel vpn gratuito e ilimitado para Android para desbloquear sitios, ver videos en línea, omitir aplicaciones bloqueadas, proteger puntos de acceso WiFi y navegar de forma privada y anónima. Once installed, run the app and enter your FoxyProxy account details. Just like the desktop apps, it has numerous speciality servers available. info | Blog: king-sabri. Email apps. g. An app developer has the freedom of choosing whether or not it will respect and obey the Android’s proxy rules or not. To "fix" this, I forwarded all traffic transparently to the Burp proxy. ProxyDroid is an app that can help you to set the proxy (http / socks4 / socks5) on your android devices. With this hacking tool, you can hack any website that is vulnerable to SQL injection. Most trusted Android VPN app. provider. The dedicated IP option is also available for an additional fee. Once detected, we asked the developers to make the necessary changes. ” This will cause all your requests to be captured and stored in the History sidebar panel. Snap VPN - Unlimited Free & Super Fast VPN Proxy APK Download for Android. Charles Proxy for iOS is a new app from the creators of Charles Proxy… Charles’ default proxy port is 8888, you can change it in Charles proxy settings. Proxy authentication is used and the application cannot respond to authentication requests. An android app that sets the proxy settings for a wifi access point by using adb. 9/10 - Download Blue Proxy Android Free. To disable Proxy, tap the button and it should slide to the left. If you are searching for a powerful VPN software application for windows pc, Mac OS, or other Android devices, the VPN proxy master for pc is recommended for you. Proxy address (ipv4:port) The proxy setting done in the app only works at the application layer and does not affect your other applications. It is also used as a client-server tool which can be connected to multiple android devices or emulators. So it’s your turn to download this VPN and keep yourself secure and protected. 1 and above. Only the communication from the specified application can be acquired. " Phones that have Android 10 and above have another MAC address. How to Confirm IP Address Now that you have set up proxies on your android device, you need to make sure it is work. Inspect Android Application Traffic. If enabled, this function provides a best effort attempt at translating all internal links that App Proxy finds in HTML and CSS responses being returned to clients. Some apps are programmed to use the Android proxy settings, some, like browsers, can have their individual proxy settings, while others ignore Wi-Fi proxy settings altogether. Why use a proxy tool? View all API information Open your phone's Settings app. I've tried using android. The FoxFi app is one of the best Tethering apps for Android phone, and this app allows you to turn your mobile into a hotspot. However, if you open the app, it will use the internet. Enter your PC or Mac IP address in the Proxy hostname field, enter 8888 in the Proxy port field. If Citrix Gateway isn’t the best way to provide SSO in your environment, you can set up an MDX app with policy-based local password caching. Tap on “Advanced” (3). The simplest proxy for Android. Just pick out the one you like best and give it a try! Related Articles: Top 5 Android Window Managers. me VPN Android app is built to ensure our users get an unmatched security and privacy experience on any Android device with a blazing fast speed. If you only have one account, the VPN connection will start automatically. Install ProxyDroid on Android. Advanced proxy client that can redirect internet app connections through a faster proxy. 2. Fill in the fields as Under Proxy, select Manual. Additional devices such as game consoles can be configured for Surfshark via DNS settings. putString() to set System. NFCProxy is a an Android app that lets you proxy transactions between an RFID credit card and a reader. As stated on its description: Run your own Proxy Server on your device! The app can handle HTTP and HTTPS protocols and GET/POST requests. HTTP_PROXY, but my call fails (I'm Introducing Proxy Toggle Proxy Toggle is a small utility application compatible with Android 5. An app developer has the freedom of choosing whether or not it will respect and obey the Android’s proxy rules or not. Snap VPN is the fastest free VPN to unblock and access all your favorite websites and apps. This week, we'll do the same thing with Android Emulators. Maybe you have installed multiple media players or web browsers. If you are looking for an app that does much more than capturing packets and not a full-fledged penetration testing tool like cSploit or zAnti then WiFinspect is for you. So take your pick and enjoy! Last week, we covered how to capture network traffic generated by an iOS simulator within an Appium test. I run Burp Suite locally, install the User Cert as outlined in Portswigger’s documentation, configure a WiFi proxy and I’m off the races. All networking requests and responses will be passed through Charles Proxy, so you’ll be able to inspect and even change data midstream to test how your app responds. Use ProxyDroid (root only). Android Proxy; Enable notifications to get latest update. configuring proxy in Outlook Android app Hello, I'm using MS Outlook (PC) to get into my mail box, to configure MS Outlook my company uses a proxy that we can easily set into connection parameters of the Office MS Outlook. Attendees; CalendarContract. microsoft. Hotspot Shield: Proxy Server Apps For Android. For this app, you have to set up PdaNet on connecting PC or tablet and set up Proxy setting. For Android API 24 and above, you also need to add the following code to the app: One gateway Endless entertainment. You can view metadata, headers and bodies in the app, so you can finally debug your app’s networking issues without a computer. Help to translate ProxyDroid: http://crowdin. Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains from macOS & iPhone & Android Mitmproxy is a free and open source interactive HTTPS proxy tool which helps to monitor the API request & Response which flows through an Android app. It is a free proxy app by Dinosword Team, an excellent Free VPN Proxy & Secure VPN Unblock alternative to install on your smartphone. Tap Network & internet Wi-Fi. I´ve been doing some digging and nothing good has came up of all the time spent. Settings. hide. Whether you can’t access your Unlike Packet Capture or Debug Proxy Wireshark alternative apps for Android, you need root permissions to work with most features in WiFinspect. 30Fast Rocket VPN Pro | Fast & Worldwide Proxy VPN APK 5. Ever been stuck trying to set up your proxy to capture traffic from your androids browser and apps?This tutorial will demonstrate how to set this up from sta Android set proxy for all apps may never actually be something that we see because of how Android and the apps are built. Go to your Android System Settings & tap on “Network & Internet” (1). Set the proxy to manual. Sophos Intercept X for Mobile is a Mobile Threat Defense (MTD) solution for your Android device, iPhone, or iPad. To find it: Turn on Wi-Fi. Proxies can help you hide your IP address, change your device’s location to unblock content, and more. It may help a lot in-app debugging and can be used even on apps installed from stores. Droidsqli is a SQL injection tool for android. Charles Proxy sits between your app and the Internet. How to Confirm IP Address Now that you have set up proxies on your android device, you need to make sure it is work. 2 ★, 100,000+ downloads) → While most of the third party ROMs have a Proxy Settings button that works for WIFI as well as 3G, the OpenVPN’s official app runs on any device running Android 4. I also noticed, that when I'm configuring the proxy in the settings, it actually says that the HTTP proxy will be used by the browser, but not by some of the apps (in my case none of the apps work, including the pre-installed apps like android market, youtube or google maps). Best Firewall Apps for Android 1. Here is the first best proxy browser for android through which you can surf the internet without losing your privacy, blue proxy browser helps you to access blocked websites in your countries without leaving any footprint, The app will built the strong fast proxy server so that you can experience the internet speed, The best part I like in blue Enable SSL Proxy for your mobile app. Tap on “Mobile network” (2). Rocket alternative to install on your smartphone. Browse other questions tagged android proxy burp-suite http-proxy tls-intercept or ask your own question. Pricing: Free. Android devices allow configuring proxy settings for each Wi-Fi network. Android Hacking | Setup Global Proxy for All Apps in Android (without root) with Burp Suite KING SABRI A Hacker and RedTeamer | Author of @Rubyfu | MCITP-EA, CCNA, RHCE, CEH, OSCP, GWAPT, OSCE | Resume: SabriSaleh. The best free & unlimited VPN app to unblock websites, watch online video, bypass blocked apps, secure WiFi hotspot and browse privately & anonymously. VPN proxy master for pc can be used in Windows 7,8,10, Mac OS, Android mobile devices, etc. After sign in, the app will automatically download the VPN settings for your account(s). How to: Enable and Disable Proxy ID app. how to use. Aside from the 5400 + servers in 59 countries, NordVPN for Android TV has additional features. There is absolutely no need for username password, no registration, and no bandwidth restrictions. SocksDroid is simple, free, open source and has no ads. net/project/proxydroid/invite PLEASE ROOT YOUR For example, with Android apps developed using Xamarin, the default HttpClientHandler does not use the system proxy, but the native AndroidClientHandler does. On the new dialog, tap Show advanced options, choose Manual under the Proxy settings. BlockedNumbers; Browser; CalendarContract; CalendarContract. Huh!!!!! So that’s why we are going to have a look at the app called “Drony” that creates universal proxy settings and makes it available to every app. And one of the easiest ways to set up a proxy on Android is by using an application like Every Proxy, which, unlike many others of the same ilk, does not require root permissions to work. It is a proxy worldwide app by Small SEO Tools, an excellent Dr. I'm looking for a programmatic way to set-up http proxy settings for android handsets. 1. Get CyberGhost VPN on your phone, tablet or Android TV! For this, you invariably use certain VPN services that are either in the form of certain third party apps or use proxy servers etc to set up the private network on your device. HTTP Proxy Settings: Android app (3. It is 100% free. You can even set the app to forward all connections to a default host and port so you can use other protocols as well through the socket! Note. gradle file as required for each application module. System. It allows you to examine, intercept, and modify requests and responses. The app offers five hours a week to access blocked websites and extra hours can be earned by completing ad surveys within the app. Keep a note of the port mentioned in the Proxy Settings. You can avoid many Flash VPN Proxy APK 1. Free VPN Proxy app with High Speed. The most popular Windows alternative is Proxycap. 2. com Android HTTP traffic Proxy setting tool. tPacketCapture Android users are being warned about malicious apps that literally hide on your phone—here are 15 you should ensure you have not installed. The description of Proxy Settings App Proxy Settings provides a set of tools to ease the access and the modification of proxy server configuration into your Android device when you are connected to any Wi-Fi (at the moment setting the proxy on Mobile network is Learn how to configure proxies on your Android phone or tablet. This Paid VPN Proxy Master 2020 app has some really great VPN premium packages, and if you are looking for a pro VPN for android that will well-hide your location and identity, lets you enter any website, and doesn't interrupt your browsing with annoying ads, then you should definitely try this paid VPN or premium VPN app that comes with a This insight comes really handy when you are into debug session and instead of wasting time in analyzing requests and response using debug points in your code in Android Studio. PLEASE ROOT YOUR DEVICES FIRST AND MAKE SURE YOUR KERNEL SUPPORT IPTABLES (NAT) TIPS: Press MENU button to find a "Recover" option that would help you to recover / reset the proxy settings when you get something wrong. Proxyman • Modern Web Debugging Proxy. Check Your Proxy Settings. Android Enterprise has several enrollment methods. As a start you should set the target in the proxy dialog box to “History. This Video will explain how to Access Internet by all Android apps in Proxy network without root. US Proxy servers are a built-in feature within the proxy browser app. On the top left corner of the app, click on your profile. Open a browser on your device to test. Snap VPN is the fastest free VPN to unblock and access all your favorite websites and apps. By using this app you have the option to easily unblock sites, watch online video, bypass blocked apps. Top 5 Android Expense Managers. Under the Presence section, click the button next to Enable Proxy. Psiphon facilitates access to websites and services which are censored, blocked, or otherwise unavailable, no matter where you are in the world. Usually, in android, these services you access with apps, but the VPN feature is also available in almost all android device that you can use. The saved transactions can be replayed to skim credit cards or the RFID credit card can be replayed at a POS terminal. This app permits you to connect to WiFi mode from computer systems or tablets. On your Android phone, go to Settings > WiFi. Get the app from the Google Play Store or if you’re using an Amazon Kindle Device, get it on Amazon. Access 6700+ servers in 90+ countries. Enter the password and scroll down. Tap About phone. Sometimes you may have multiple apps installed on your Android device that may be set as the default application for a certain file or data type. Alternatively, you can purchase hours as and when needed. Proxy > Proxy Settings: We leave the port as default and activate “Enable transparent HTTP Proxying” Proxy > lL Proxy Settings: Activate “Enable SSL Proxying” and we add a new entry in Locations (Host: *, Port: *) HOW TO SET UP ANDROID EMULATOR . This tool is a proxy configuration tool that takes advantage of Android VPNService feature. If you need to debug the HTTP communication between a server and an Android app running in an emulator or device, here’s some instructions on how I went about doing it. Tap on the APN you are currently using (5). Then touch Save button. Snap VPN - Unlimited Free & Super Fast VPN Proxy APK Download for Android. 3. While Android WiFi settings proxy is easy to swap in and out, apps are built a little bit differently. See How do you capture ALL the traffic from an Android app? for description of this setup. 0 for Android is available for free and safe download. It is a straightforward process. Discover The Best Android VPN Features. Long click on the Wifi network created above. Touch VPN is a completely free VPN app. 0 Marshmallow, Android 5. 0 - “Nougat”) and suddenly it wasn’t working. These include P2P servers, Onion over VPN, and Double VPN for maximum security. If your device is rooted you can switch AdGuard to a “Local HTTP proxy” filtering mode, in fact we even encourage you to do that. A paid VPN proxy app is essential to freely access How to configure the Android proxy settings on a Wi-Fi network. js – part 2 The usual Android caveat applies here: Some settings may differ from what's shown here based on who makes your phone. You can monitor traffic from apps in active development (an application for which you have access to the codebase). My advice is to use the search feature at the top of the Settings app to find Howdy to you all, Xamarin devs and lovers, I´m new to the site and Xamarin. Instructions: Go to the Start Hacking page to start hacking. Orbot: Proxy with Tor. The Android app is easy enough to use and has a list of nice features like split tunnelling, the ability to automatically connect to NordVPN whenever you join a Wi-Fi network, and the speedy The proxy setting done in the app only works at the application layer and does not affect your other applications. How the App Works Our VPN block breaker operates similarly to any other proxy servers used Proxy Android free download - Android 6. So ideally,only browser can access internet and not other apps. android proxy app